Water-supply system.



C. WOLF.

WATER SUPPLY SYSTEM.

APPLICATION mso MAR. i. 1915.

Patented Sept. 28, 1915.

2 SHEETS-SHEET! COLUMBIA PLANOORAPH c0., WASHINGTON. D. c.

C. WOLF.

WATER SUPPLY SYSTEM. APPLICATION FILED MAR. I. I9Is.

Patented Sept. 28, 1915.

2 SHEETS-SHEET 2 COLUMBIA PLANOGRAPH c WATER-SUPPLY SYSTEM.

Application filed March 1, 1915. 7 Serial No. 11,349.

To all whom am comma;

Be it known that I, CARL VVOLFTIIIHHLP- facturer, a resident of Schweinsburg-on-the Pleisse, in the Kingdom of SaxonyyGermany, have invented new and useful Improvements in "Water-Supply Systems, 0t which the following isa' specification.

My invention relates to a watersupply system for high situated houses and reservoirs supplied by a pump which 18 stopped automatically'when the tank or reservoir 1s filled.

vided with an overflow pipe whichadvantageously tapers outwardly. If the tank is filled with water, the surplus, flowing through this overflow pipe is. throttled 111 such a manner, that by the back-pressurethe pump is stopped automatically in a known manner. To increase the back pressure the overflow pipe may be. provided with an ascending pipe or with a valve, which. is closed by the enteringwvaten' The tank provided with the overflow pipe may also" be used to supply a large reservoir, which-is For this purpose the tank is provided with a delivery pipe, having a valve, through which all water, supplied by the pump can be deliver-ed. This valve is controlled by. a float in such'a manner that; the valve begins to close only ifthe reservoir is nearly filled.

lVhen thevalve' isclosed, the tank'provided with the overflow pipe is filled and when 'this'is' done the pump by the back pressure is. stopped. The said valve is opened when thereservoir is nearlyempty, whereupon the water, contained in thetank flows out. Hereby the pressure, working on the pump is diminished in such a degree, that the pump is actuated again automatically; 7

In the drawings the invention is shown" in several modifications. a u Figure 1 shows schematically a system for supplying a high situated: house with water. Fig. 2 shows the tank provided with the overflowvpipe. Fig. 8 shows a modification of the tank, having an ascending pipe. Fig. 4 showsa tank the overflow pipe ofwhi ch is provided witha valve: Fig. :5 shows a modifica'tion of such a valve. Fig.16 is a sectional view of a reservoir provided with the tank for controlling the valve of the de livery pipe. .1Fig..7 is a similar View sl1ow ing the valveand its actuating mechanism on'a largerscale. ie a i I Specification of Letters Patent.

The pump actuatedpreterably by an electric motor supplies a closed tank, proman a Sept. 28, 1915.

In thesystem shown in Fig. 1' the pump (0, arranged in a valley and actuated preferably by an electricmotor, not shown, such arrangement being generally known, is connected by the ascending pipe 0 with the tank MQE- (Z of a house, situated on a hill. w The upper ,7

part of the tank (Z is provided with a taper- 111gv overflowpipe c, the free end of which reaches nearly to the bottom of a receptacle Z). This receptacle, which is provided with an air pipe 6 receivesthe water flowing out of the pipe c; On the under side of the tank d a funnel 9 1s arranged into which enters the ascending pipe 0. The funnelg is provided with a faucet g l/Vhen the tank dis wholly filled with water by the pump, the

water rises'in the tapering pipe 6 and is thereby throttledin such amanner, that the back pressure thus'produced, is transmitted to the pump and stops the same in a known manner. The water forced out of-the pipe 6 I by thelaststrokes of; thepump isreceived in the receptacle '6 and is suckedfback by a siphon action; when water is drawn oil the tank (Z. The special means for stopping the pump, are not shown in the drawings, such means being generally known. When by consumption of water the level has sunk nearly to the faucet 9 the pressure, bearing onkthe pump has diminished in such a degree, thatthe pumpis actuatedagain in a known manner, and the tankd is filled again with water. The" tunnel g on the'under side of the tank cl gives the advantage,that if the tank is empty, the funnel 9 contains still a quantity ofwater sufiicient for a certain time, 5 until the pump has again supplied waterto the tank. If the room in the house above the tank (Z is Suiliciently highthe upper end of the overflow pipes can be, provided with an ascending pipe 71. as shown in Fig. 3. Theupperend of this pipe may be I provided with a funnel 70, having anoutlet oroverflow opening. In the narrow pipe h the water rises rapidly, if the pipe 6 has been filled and hereby the back pressure of the water column is increased in such a manner, that the pump is stopped WltllOlltfiLllUrGi In the arrangement shown 111 Fig. 4:, the

p i overflow P113876 terminates in a valve caslng I space between the valve plate and the bottom of the casing, through which the air, dis- 'placed by the Water, rising in the tank at and thepipee, may escape, By the water entering into the valve caslng 2', the valve plate is turned back until 1ts lower edge bears against the back wall of the casing, as'

shown in dotted lines in Fig. i. Hereby the access to the funnel 2' is cut OH and the back pressure of the water is rapidly increased. To prevent a bursting of the tubes, the valve plate 2' is provided with a small opening 2' through which. a small quantity of water may escape in the closed position of the valve. Instead of the plate valve of course i any other form ofa valve may beused, as

e g. shown'in Fig. 5 a ball valve 6?, floating on the water and rising with the same, until it is pressed against the valve seat 6 The tank. provided with the overflow pipe may also be used for fillinga great open reservoir. Forthis purpose the tank d is arranged onthe upper end of the ascending pipe 0, and the latter is provided with a delivery pipe feeding the reservoir. "In this pipe a valve is arranged, throughwhlch all av'ater, fed by the pumpican escape; This 1 valve iscontrolled by afloat in such a ner, that the valve begins to close only if the reservoir is nearly filled with water.

The valve being closed the water is fed into the said tank, providedwith the o-verflovx pipe, and if this tank is filled, the pump is stopped in themanner described. The valve of the delivery, pipe is opened again by the float, if the reservoir is nearly empty. The

water contained in the tank flows then through the valve into the reservoir and hereby the back pressure of the water in the V ascending'pipe isudiminished to such a degree, that the pump is actuated again auto- This arrangement is shown in The as matically, Figs. 6 and 7 of the drawings.

cending pipe 0 of the pump (not shown) is providedywith the delivery pipe 2' dis charging into the open reservoir 10. In the i pipe 11 is arranged, a rotary valve 70, which is automatically closed, it the reservoir is i filled. For this purpose a float r is fixed on theendof a lever q, swinging on the pivot g and having a slotted arm. 72. This arm engages the bolt '0 of a lever n, also swing- 3 ing on the pivot 9 On the lever n is fixed a toothed sector we engaging with the toothed wheel Z fixed on the valve 7a The slotted arm'pisso formed, that the lower end of the slot bears against the bolt 0. of the lever n, if the float has nearly approached its raised position. If the float is then raised farther, the'lever n is taken along with the 'lever'g, and/the toothed arm on turns the toothed wheel Z so thatthevalve 7c is closed.

- The length of the slot of the arm 79 is such,

that the upper end-of the slot bears against the bolt 0 of thelever a, when the float is nearly in its lowest position. If :further water is drawn ofl from the reservoir, so that the float r sinks deeper, thelever n is swung down and the valve is is opened again. c

On the upper end of the ascending pipe 0 the'tank dis located, provided with the overflow pipe. When in thelowest position ofthe float r the pump isbrought into action, the \vater,'raised by'the' pump, is de liv'ered through the pipe '71 and the open valve is into the reservoir'w By the water rising in the reservoir the float r is raised but the valve it remains open until the float is raised to such a height, that the lower end of the slot of the arm pbears againstlthe bolt 0 of the lever n, thevalve is is closed as above described. The pump, working on,

then feeds the water to the tank. WVhen this is filled and the water reaches the overflow pipe, the back pressure of the water is increased as describedso that the pump is stopped. "Nhen by the consumption of water, the level of water in the reservoir sinks, and the float r sinks also, the valve is remains'closed until the float 1" has sunkto such a depth, that the upper end of the'slot of the army) bears against the bolto of the lever n. In the further downward move ment of the float r the lever a is swung downward and. the valve 74 is opened, so that the water,contained in the tank cljcan escape through pipe 6 and valve k into. the reservoir. Hereby the; back pressure. in the ascending pipe o'is diminished-in such: a degree, that the pump'is actuated again in theknown manner, for refilling the reservoir. a

. Several pumps located at distant springs may be usedfin thedescrlbed mannerior filling the same reservoir, each pump having the saidtank with the overflow pipe.

I do not limit myself to'the construction described and shown herein nor to any speciflc devices for accomplishing the same purposes as it is obvious that the devices may be greatly varied without departing from the spirit of my invention, but

that I claim and desire to secure by Letters Patent, is r 1. In a water supply system, the combinasure device for actuating the mechanismfor V automatically controlling the operation of the pump, comprising a closed tank comsure device for actuating the mechanism for automatically controlling the operation ofv the pump, comprising a closed tank having a funnel on its under side through which it I communicates with the pipe, and a throt: 7

tliug overflow pipe communicating with th tank through the top thereof.

4-. In a water supply system, thecombinationwith a riser pipe, and a pump' tor forcing water through the latter, of a back pressure LlQ'VlCGyfOI actuating the niecha nism for automatically,controllingthe operation of the pump, comprising a closedtank communicating with the pipe and provlded with a small overflow-pipe having a con tracted discharge end, whereby the flow of water in the riser pipe is throttled by the overflowing of the tank.

In a water supply system, the combination with a riser pipe, and a pump for forcing water through the latter, of a back pressure device for actuating the mechanism for automatically controlling the operation of'the pump, comprising a closed tank communicating with the pipe and provided wlth a small overflow-plpe having a contracted discharge end, and an automatically,

operated valve in said end adapted to throt tle the flowof water from the tank.

Copies of this patent may be obtained for 6. In a water supply system, the combination with a riser pipe, and a pump for forcing water through the latter, of a back pressure device for actuating the mechanism for automatically controlling the operation of the pump, comprising a closed tank communicating with the pipe and provided with a small overflow-pipe adapted to throttle the flowjof water through the riser pipe, a reservoir, a delivery pipe connectingthe latter with the riser pipe, a valve in the delivery pipe, and means operable by the water in the reservoir to automatically open and close said valve.

7.111 a water supply svstem, thecombination with a riser pipe,'and a pump for forcing water through the latter, of a back pressure device for actuating the mechanism forautomatically controlling the opercommunicating with the pipe and provided with a small overflow-pipe adapted to throttle the flow of water through the riser pipe,

a reservoir, a delivery pipe connecting the ation of the pump, comprising a closed tank latter with the riser pipe, a valve inthedelivery pipe, means operable by the Water in the reservoir to automatically open and close said valve, a float in the reservoir, and means operable by the float in its extreme positions for opening and closing the valve.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses.

CARL WOLF. Vitnesses SIGL.-ING KURT HERNEY, MAX PIETUSH.

five cents each, by addressing the Commissioner of Patents, Washington. D. G 

